Cultivator



Apr. 17, 1923.

W. A. STOCKTON CULTIVATOR Filed May 2, 1922 2 Sheets-Sheet 1 Apr. 17, 1923.

W. A. STOCKTON CULTIVATOR Filed May 2, 1922 2 Sheets-Sheet 2- Patented Apr. 11?, 1923.

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WILLIAM A. STOCKTON, OF PLEASANT HILL, LOUISIANA, ASSIGNOB-OF TWO-THIRDS' 'IO WILLIAM DONELL, PLEASANT HILL, LOUISIANA.

CULTIVATOR.

Application filed May 2, 1922. Serial No. 558,023.

more particularly to cultivators of the spring tooth type.

he primary object of the invention is to provide means for adjusting the tooth frames, so that the teeth supported thereby may be moved to operate at various angles with respect to each other.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changesin the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention. 1

Referring to the drawings:

Figure 1 is a rear elevational View of a cultivator constructed in accordance with the invention.

Figure 2 is a sectional view taken on line 22 of Figure 3,.

Figure 3 is a plan view of the cultivator.

Figure 4 is an elevational view of the cultivator, one of the tooth frames being removed.

Figure 5 is a detail view disclosing the tooth supports. 7

Figure 6 is a sectional View disclosing the manner of supporting a tooth adjacent to tooth frames.

Referring to thedrawings in detail, the harrow includes a body portion 5 which is formed with an opening 6 extending transversely therethrough, the opening being of a length to extend substantially the entire length of the body portion as shownby Figure 4 of the drawings. lhe forward end of the body portion 5 is formed with a plural-,

ity of openings 7, which openings accommodate the ins 8 carried by the movable securhitched to the cultivator.

Extending throughthe body portion are bolts 11 which also extend through openings formedadjacent to the ends of the securing member 9, the upper ends of the bolts being i supplied with washersv 12 providing stops for the upper ends of the coiledspring 1S,

the lower ends of the coiled spring contacting with the securing member 9 to normally urge the same downwardly.

As shown, the pins 8. which are carried by the securing member 9 intersect the elongated openings 6, where they may have connection with the adjusting rods 14 to secure the forward ends of the adjusting rods in their adjusted positions on the body portion, for purposes to be hereinafter more fully described.

The harrow also includes pivoted frame sections 15 and 16 respectively, each section comprising a forward bar 17 having an opening extending longitudinally thereof,

the opening beingindicated at 18 and provides a clearance for the reception of the forward ends of the teeth 19 of the harrow. A rear member 20 forms a part of each section and includes spaced bars, between which bars are mounted the pivoted guide members 21, which guide members have ex tensions 22 positioned in openings formed in the spaced bars. The forward ends of the teeth 19 are pivotally supported within the openings of the forward bars of the sections, so that the bars may pivot with respect to the teeth and allow the teeth to be adjusted with respect to each other.

Formed at the rear end of each of the adjusting rods 14 is an opening to accommodate the bolt 23 associated therewith, which bolt also extends through the forward bar's of the respective section to pivotally secure the rear ends of the adjusting rods 14 to the sections of the harrowa From the foregoing it will be seen that if it is desired to adjust the tooth supporting sections of the harrow, it is only necessary to move the securing member 9 upwardly against the tensions of the springs 13', removing the pins 8 from their openings. With the member 9 in this position, the forward ends of the adjusting rods 1% may be moved to move the sections of the harrow to various positions, securing the frames at angles with respect to the body portion 5, adapting the harrow for use in harrowing plants planted at various dis- I tances apart.

At the rear of the body portion 5 is 'formed an opening to accommodate the bar 24 which is formed with a plurality of open ings 25 to receive the transversely extending pin 26 by means of Which the bar 2 may be held in its positions of adjustment. At the lower end of the bar 24 is formed a head 28 which is secured to the rear end of the rearwardly extending bar 29 that is secured to the under portion of the body 5 as at 80. The pin 26 is supported by the spring arm 31 so that the pin may be readily and easily removed to be positioned in the openings of the bar 2 k to adjust the head 28. This head 28 is especially designed for contacting with material tending to clog the cultivator teeth, to cause the cultivator to ride over the material.

Bars 32 connect the bars forming the sec tions of the cultivator, and relieve the teeth of the harrow of undue strain directed to the lateral sections. In order that the harrow may be properly guided, handles 33 are provided, Which handles may be gripped by the operator in the usual and Well known manner.

Having thus described the invention, What is claimed as new is z- A harrow comprising a body portion, said body portion having a plurality of openings, at securing member on the body portion and having a plurality of pins adapted to move within the openings, resili ent means for normally holding the pins in the openings, tooth supporting sections pivotally mounted on the body portion, adjusting rods having connection with the sections and having their forward ends secured to the body portion by engagement with the pins, and curved harrow teeth supported by the sections.

In testimony that I claim the 'fOl'Qg'OlDg as my own, I have hereto afhxed my signature in the presence of two witnesses,

1V 1LT JAM A. STOCKION. lVitnesses O. B. GREGORY, LACY. 

